document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=205342>Question 205342</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Heres the question in the book:<BR>\n" );
document.write( ". Find the exact  value of the following expression. Do not<BR>\n" );
document.write( "use a calculator.<BR>\n" );
document.write( "sin105cos15\r<BR>\n" );
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document.write( "Any help with this would be much appreciated.\r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #155010 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=155010\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Find the exact value of the following expression. Do not<BR>\n" );
document.write( "use a calculator.<BR>\n" );
document.write( "sin105cos15 <BR>\n" );
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document.write( "105 = 60+45<BR>\n" );
document.write( "15  = 60-45<BR>\n" );
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document.write( "Your Problem becomes<BR>\n" );
document.write( "sin(60+45)*cos(60-45)<BR>\n" );
document.write( "= (sin60cos45-sin45cos60)(cos60cos45-sin50sin45)<BR>\n" );
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document.write( "Now put in the values and do the arithmetic.<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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